Air quality index [µg/m3]:
excellent ≤ 20
good ≤ 60
lightly polluted ≤ 100
moderately polluted ≤ 140
heavily polluted ≤ 200
severely polluted > 200
PM 2.5
[µg/m3]
PM 10
HOUR OPOLSKA ST. ROOF (BEFORE FILTERS)  AIR SUPPLIED TO OFFICES
230095lightly pollutedexcellent71excellent
2200123moderately pollutedexcellent81excellent
210066lightly pollutedexcellent71excellent
200045goodexcellent61excellent
190042goodexcellent61excellent
180044goodexcellent61excellent
170033goodexcellent41excellent
160023goodexcellent31excellent
150019excellentexcellent31excellent
140021goodexcellent31excellent
130015excellentexcellent31excellent
120019excellentexcellent42excellent
110019excellentexcellent51excellent
100032goodexcellent51excellent
090034goodexcellent61excellent
080048goodexcellent61excellent
070059goodexcellent61excellent
060076lightly pollutedexcellent81excellent
050065lightly pollutedexcellent81excellent
040063lightly pollutedexcellent61excellent
030070lightly pollutedexcellent71excellent
020077lightly pollutedexcellent61excellent
010082lightly pollutedexcellent81excellent
000090lightly pollutedexcellent71excellent